Wind Yoram. (2005). The power of impossible thinking. Wharton School Pub.
Cita Chicago (17th ed.)Wind Yoram. The Power of Impossible Thinking. Singapur: Wharton School Pub, 2005.
Cita MLA (9th ed.)Wind Yoram. The Power of Impossible Thinking. Wharton School Pub, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.